▶ 2026 Wisconsin Insect Pest Outlook
Dr. Emily Bick reviews key field and forage crop insect pest issues from 2025 and what to watch for in the upcoming 2026 season.
Insects
▶ 2026 Endangered Species Act Pesticide Labeling Requirements
Alyssa Foss explains new pesticide label requirements related to the Endangered Species Act and how they affect pesticide use in Wisconsin.
▶ Considerations for 2026 Seed Selection
Josh Kamps covers hybrid and variety trial data for corn, soybeans, and small grains, pest and disease management considerations, herbicide resistance, and scouting strategies.
Adding Wheat to a Corn-Soybean Rotation to Enhance Pest Management
Using wheat to diversify corn-soybean crop rotations can act as a strong foundation for more effective, economic, and sustainable pest management.
First crop insect scouting in alfalfa
It’s almost time to scout for early season insect pests in first alfalfa crops. These pests can impact alfalfa crops’ ability to thrive.
Managing Black Cutworm in Wisconsin Corn Fields
Black cutworm (Agrostis ipsilon) is the most common cutworm species affecting Wisconsin corn, although outbreaks are infrequent and difficult to predict. Black cutworm larvae reduce stand counts and yield potential by cutting corn plants at the base or below ground.
Early season insect scouting in soybean
It’s almost time to scout for early season insect pests in corn and soybeans. These pests can impact soybean crops above and below ground.
Early season insect scouting in corn
It’s almost time to scout for early season insect pests in corn and soybeans. These pests can impact corn crops above and below ground.
Managing Slugs in Wisconsin Field Crops
Slugs are becoming an increasingly challenging pest for Wisconsin farmers who use conservation cropping practices like no-till and cover crops. The increased adoption of these practices in recent years, along with milder winters and wetter springs projected for Wisconsin in the future, may increase the importance of slugs as pests of field crops.
2025 Pest Management in Wisconsin Field Crops (A3646): A guide to managing weeds, insects, and diseases in corn, soybean, forages, and small grains
This annually updated reference guide is one convenient source for management information on the key pests of corn, soybean, forages, small grains, and stored grains and provides targeted information for Wisconsin growers.
Managing Soybean Aphids in Wisconsin Soybean Fields
Soybean aphids (Aphis glycines) are an invasive pest that can significantly stunt plant growth and yield. Soybean aphids feed on the sap of plants and leave behind a sticky residue.
Managing European Corn Borer in Wisconsin Corn Fields
European corn borers (Ostrinia nubilalis) are destructive corn pests in Wisconsin. Larvae feed on corn leaves and in developing tassels, stalks, and ear tips. European corn borer damage reduces grain quality, increases grain loss, and leads to problems at harvest.